Show me the statistic that say how many shoes/sandals/boots were sold in the US last year. Now show me what percentage of those shoes were made in the US of foreign components and what percentage of them were made beginning to end of US sourced components.
Many of these companies can't even keep their internal supply chain logistics in order enough to report what country something was actually manufactured in, much less reporting hard volume/etc numbers sufficiently to do anything but obfuscate.
Put another way, if the "economic" numbers weren't so cooked they might be a reasonable basis for argument, but time and time again when you dig into something you quickly hit a dead end because no one actually collects such detailed statistics across the entire economy. Sure you can tell me how many planes Boeing made in each of the past 30 years, but good luck as you move down the supply chain, or for less valueable goods like refrigerators.
If you look at the computer industry you frequently can't even tell how many units a company sold in the US because they want to obfuscate their declining volume. To be more specific, can you tell me how many zseries mainframes IBM sold each year for the last 10 years? The last couple times I looked at this, the closest you can get is "installed capacity" which is IBM multiplying the machines by their theoretical capacity which is measured using some proprietary IBM metric and doesn't even represent actual sales because they have "capacity on demand" which allows them to sell/install a machine with capacity X but only charge and provide the customer with a fraction of X. So, each generation of machines is some larger multiple of X, which allows them to sell fewer machines (and capacity), and claim more installed capacity.
You will get a more realistic view going to your local target, and standing in the sock isle counting what people are buying than you will get from the target sales numbers.
(socks are another one of those areas where its actually possible to buy US manufactured textiles if you look, because they are the kind of garment that is easily automated. Its likely even US cotton, but whether it was shipped overseas for processing first, good luck..)
Please don't use anecdotes and personal experiences when discussing economics.
You lament about US not manufacturing low value added products. You can't have personal experience that would give you a good view.
You must use statistics and data to argue.